Overview
Bezzera Unica Single Boiler Espresso Machine
Bezzera offers a wide selection of espresso machines.From the large Matrix DB (dual boiler) to the compact Aria HX (heat exchanger) , they also offer a lever model in the Strega. For espresso lovers that don’t want a large machine, they offer the Unica SBDU (single boiler, dual use).
One of the keys to great espresso is proper temperature. The Unica features PID controls that keep the water in boiler at a set temperature with minimal fluctuation. The classic E61 grouphead,also helps keep the water temperature stable throughout the extraction process. Also it’s large 3 liter water tank will allow to keep making back to back shots with little interruption. For the occassional cappuccino, you have the option to steam by switching the boiler to steam mode through the PID display. Simply hold the “+” button until the display shows “c -> s”. Just remember to switch back to coffee mode using the same process.
Most SBDU machines are built very basic and don’t have many features that the Unica has. One example is the Rancilio Silvia, which doesn’t have PID controls or an E61 grouphead. So if you are an espresso only lover and want the best of the best (in a SBDU), choose the Bezzera Unica.
Videos

Features
- Single boiler machine: Can handle both espresso extractions and steaming functions. To get to steam mode, hold the “+” button on the PID controls until the display shows “c -> s”. Just remember to switch back to coffee mode using the same process.
- PID temperature control: Manages the coffee and steam temperature set by the user.
- The coffee temperature can be programmed between 80° C – 100° C. 93° C is the optimal temperature for medium roasts. For lighter roasts, use hotter temperatures to help extract more flavor. For darker roasts, use cooler temparatures to avoid bitterness.
- The steam temperature can be programmed between 105° C – 120° C. Increasing the temperature will help give you more steaming power.
- Stainless steel body: Polished to a mirror finish.
- E61 grouphead: Hot water circulates from thermosyphon tubes to/from the grouphead and boiler. As a result, this system keeps the grouphead and your portafilter nice and hot. This is a dual-purpose, single-boiler machine that does not have a heat exchanger. The lever next to the grouphead activates a microswitch which turns on the pump to pump water through the coffee grinds.
- Pump pressure gauge: Indicate the brewing pressure during espresso extraction. Below the pump pressure gauge, there is a ‘P’ switch that powers the pump for hot water delivery through the opened steam wand. The ‘O/I’ switch is for powering up the espresso machine. The light in between is the power light.
- Multi-directional steam wand: Allows for more flexibility. In addition, the joystick controls for the steam wand give an instant on / off operation as opposed to knobs that you must turn clockwise/counterclockwise. The control locks to fully open in the up position allowing you to use both hands when steaming.
- Powerful vibratory pump: Rated at 15 bar. Please note that you only need 9 bars for espresso.
- Three-way solenoid valve: Allows quick removal of portafilter after espresso extraction and immediately prepares for the next extraction.
- Over pressure valve (OPV): Adjustable.
- Water tank: Very large and removable.
- Passive cup warmer on the top: Heat from the boiler rises and heats the top panel. Like any other espresso machine, it can take up to two hours to preheat your cups. Therefore, it is better to flash heat the cups from hot water from the grouphead or steam/water wand.
- Accessories included: Single spout portafilter, double spout portafilter, 1-cup filter basket, 2-cup filter basket, blind filter basket, plastic tamper, plastic scoop, grouphead cleaning brush, and instruction manual.
Specifications
| Brand | Bezzera |
|---|---|
| Height (inches) | 15, approximate |
| Width (inches) | 10, approximate |
| Depth (inches) | 17, approximate |
| Weight (pounds) | 41 |
| Wattage (watts) | 1300 |
| Voltage (volts) | 110 |
| Boiler capacity (liters) | 0.5 |
| Portafilter size (mm) | 58 |
| Tank capacity (liters) | 3 |
| Country of manufacture | Milan, Italy |
| Approvals | CE |
Notes
- Drip tray: Normally the included drip tray with the Unica is not drainable. If you wish to do so, you an purchase the drip tray separately (5340510)
General Espresso Machine Notes/Warnings:
- Upon first use (tank/reservoir models): On the initial start-up (or after a long period of non-use), it is important to make sure the pump is removing water from the tank. When the machine is powered on, you will hear the pump running. After 5 seconds, squeeze the in-line hose in the tank (usually the longest hose, has a particle filter attached). if you hear a different sound, this means the pump is working correctly. If not, immediately power down the machine and contact us. For more information, visit this page General Manual Pump Priming.
- Electrical: To avoid electrical damage to this espresso machine which is not considered a manufacturer's defect, please acquire and install a single-outlet surge suppressor rated at 1080 joules or higher. Without the recommended surge suppressor, the espresso machine can be damaged at the power switch, the electronics, the heating element, the pressurstat, or the wiring inside. For more information, visit this page Power Protection.
- Water: To increase the useful life and not damage your espresso machine, please use softened water. Softened water is water without calcium and magnesium, but still has other minerals for espresso extraction. Do not use distilled, purified, or reverse osmosis water as these types of water create oxidation with the metals and cause the same damaging effects as limescale. For more information, visit this page Water Choice.
- Descaling: We do not recommend descaling unless there is an issue with the espresso machine. Too much descaling can eat away at the metals and gaskets inside an espresso machine. As a preventative measure, we recommend using softened water as explained in the bullet point above.
- Backflushing: This procedure of cleaning the grouphead will need to be performed from time to time. For more information, visit this page Espresso Machine Backflush – Why 50?
Support
Parts Diagram
- Please use the parts diagrams provided below to determine the part(s) you need. Then use our search box above to find the part(s) on our website.
Note: These parts diagrams are provided by the manufacturers. We list them on our site for informational purposes only. We do not stock every single part listed nor can we guarantee that every part is available to order. - If uncertain, please go to the equipment model or part product page. Then use the Q&A tab found on that web page to ask your question.
- Lastly, and only if the first 2 options were exhausted, please use our parts inquiry page.
- Our call center does not have the training to handle parts inquiries for over 60,000 different parts items. Asking any questions regarding parts will more than likely result in you being referred to the above steps.
- Please note also that all parts purchases are non-returnable or refundable and do not include technical support, instructions, or warranties as the purchase price of any part does not cover the cost of technical support. Technical support is available for repairing equipment in our shop.
- Sorry, we will only special order a part for a model we carry AND was purchased through our supply chain.
- Since we are unaware of the mechanical, electrical, and/or plumbing expertise of a parts buyer or the tools owned by a parts buyer, we are never able to advise if a self-repair can be performed.
Diagram
| # | SKU |
| 1 | 5964627.01 |
| 2 | 5071733LL |
| 3 | 5340510 |
| 4 | 5963068.03 |
| 5 | 5074476.01SG |
| 6 | 7373009 |
| 7 | 5074621LW |
| 8 | 5074634LW |
| 9 | 7474217 |
| 10 | 5373102.01 |
| 11 | 5073020LW |
| 12 | 7816002 |
| 13 | 7816004 |
| 14 | 5220818 |
| 15 | 7817004 |
| 16 | 7474218 |
| 17 | 7611517 |
| 18 | 5125705 |
| # | SKU |
| 1 | 7479952 |
| 2 | 7479953 |
| 3 | 7479954 |
| 4 | 7479955 |
| 5 | 7479956 |
| 6 | 7479933 |
| 7 | 7479934 |
| 8 | 7479935 |
| 9 | 7479936 |
| 10 | 7479937 |
| 11 | 7479940 |
| 12 | 7493011 |
| 13 | 5267013 |
| 14 | 7812607 |
| 15 | 7479938 |
| 16 | 7479939 |
| 17 | 7479951 |
| 18 | 7479950 |
| 19 | 7479949 |
| 20 | 7371511.01 |
| 21 | 7479931 |
| 22 | 7479947 |
| 23 | 7479948 |
| 24 | 7479946 |
| 25 | 7479942 |
| 26 | 7479957 |
| 27 | 7479943 |
| 28 | 7479944 |
| 29 | 7479945 |
| 30 | 7479960 |
| 31 | 7479961 |
| 32 | 7479941 |
| 33 | 5471022 |
| 34 | 5493039 |
| 35 | 7479967 |
| 36 | 7479968 |
| 37 | 7479969 |
| 38 | 7479970 |
| 39 | 7479971 |
| # | SKU |
| 1 | 5522074 |
| 2 | 7374016 |
| 3 | 7434019 (110V) |
| 7434018 (230/240V) | |
| 4 | 5058405LL |
| 5 | 5191508 |
| 6 | 5222204 |
| 7 | 5053025LW |
| 8 | 7816002 |
| 9 | 7819911 |
| 10 | 7633907 |
| 11 | 7633906 |
| 12 | 7635424.01 |
| 13 | 7614007 |
| 14 | 7614006 |
| 15 | 7551001 (USA, 125V, 15A) |
| 7551003 (USA, 250V, 20A) | |
| 7554001 (English) | |
| 7555001 (Schuko) | |
| 7552001 (Australian) | |
| 7555003 (Switzerland) | |
| 7553001 (Israel) | |
| 16 | 5221875CM |
| 17 | 7633326 |
| 18 | 7372507 |
| 19 | 7633626 |
| 20 | 5191509 |
Reviews
FAQ
Submit Questions for FAQ
Please review the FAQ to confirm the question or topic was not previously covered.
Any followup questions for FAQ should be requested as a separate FAQ submission.
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Hi. Problem is not the grind as we are very familiar with the machine. It worked perfectly up until now. Now the issue is when you start making espresso it takes about 4 seconds to get to 3-4 bar and immediately watery coffee starts coming out, occasionally from 3-4 bar it may go up further to 6-7 bar but by then cup is full with watery coffee. Before when you waited about 4 seconds it went strait to about 10 bar before coffee started coming out. It looks like it is making the coffee wet during the 4 seconds and then water just go through wet coffee and espresso maker does not go above 3-4 bar. This is very strange since with blind filter basket it nicely holds at 10 bar. We have tried all different grinds. It is not the grind. So while the machine has the ability to hold at 10 bar with blind basket, the problem seems that it takes 3-5 seconds after you start making coffee to get to 3-4 bar where watery coffee just goes through fast even at fine grind. Can we bring the machine in for tune up to your facility? Alternatively when you are servicing in jersey city/Hoboken area could we drop it off with your technicians and just go pick it up or pay for return shipping? We do not have a car.
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Q Hi. Problem is not the grind as we are very familiar with the machine. It worked perfectly up unt...... Read more answer nowAsked on May 4, 2018 1:06 pmA
If the blind filter does not replicate the same issue, this issue clearly points to the grind fineness and/or grinder. The blind filter tells us
a) the pump can achieve 10 bar,
b) the OPV opens at 10 bar,
c) the system has no leaks as it maintains 10 bars.
Hence, the machine is fine. We would feel that we would be cheating you if we had to service the machine and found nothing wrong.
We have a Bezzera Unica espresso machine. Everything was working fine until brew pressure from nowhere started bouncing up and down during extractions.
When Unica was working fine, after 2-4 seconds or so after you lift the lever, pressure went up to 10 or 11 bar and nicely stayed in this range without pressure bouncing during the entire extraction, making a perfect cup of espresso.
Here are two problems I am experiencing:
1. When you start making espresso (when you lift the lever) for about 3-4 seconds Unica is making noise, then after 3-4 seconds at about just 2-3 bar coffee already starts coming out, but it is watery, really coffee is flowing at this low pressure, then during extraction it may go up to about 4-5 bar but I have to stop it since the cup is full by now with watery espresso.
2. When you start making espresso (when you lift the lever), for about 3-4 seconds Unica is making noise, then already at about 2-3 bar coffee starts coming out (it should really not until you get to about 10 bar), then it may go up to 8-10 bar, but now pressures starts bouncing up and down during extraction, e.g. from 8 to 10, 7 to 10, 6 to 9, 9 to 10, etc. And it makes this noise while it is bouncing up and down.
2. When you start making espresso (when you lift the lever), for about 3-4 seconds Unica is making noise, then it may go up to 10-11 bar, but now pressures starts bouncing up and down during extraction, e.g. from 8 to 10, 7 to 10, 6 to 9, 9 to 11, etc. And it makes this noise while it is bouncing up and down.
This is what I have done to troubleshoot:
1. Grinding, dose, distribution, and temping is good. Have tried different grinds and temping but it makes no difference. Machine always worked fine and by now I am very much familiar with how Unica should behave with different coffees, grinds, temping, etc.
2. With the blind filter basket in, the brew pressure is steady at about 10 bar. There is no brew pressure bouncing up and down. Just holding nicely at about 10 bar.
3. Unica holds the temperature nicely, do not experience any problems with temperature
There is a similar post about such problem here where the problem was the priming valve:
https://www.home-barista.com/espresso-machines/anita-brew-pressure-bouncing-up-and-down-during-extraction-t5555.html
Could it be that it is the priming valve? How do I fix it for the Bezzera Unica? Do you have any parts I can purchase from you or bring it in to your facility? Can someone from your tech department contact me. Thank you.
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Q We have a Bezzera Unica espresso machine. Everything was working fine until brew pressure from no...... Read more answer nowAsked on April 19, 2018 4:03 pmA
"With the blind filter basket in, the brew pressure is steady at about 10 bar. There is no brew pressure bouncing up and down. Just holding nicely at about 10 bar."
The blind test tells us that the machine is operating normally. If there was an issue with the machine, it would show up with the blind filter test because this is when the machine is stressed under maximum pressure.
The issue is now pointing to the grinder, the amount of coffee in the basket, or the tamp. Most likely, the issue is the grinder - bad burrs causing inconsistent grind quality. we have seen some cases where the electrical current in the outlet caused the same issue.







